Railway-gate



(No Model.) 3 Sheets-Sheet 1.

J. HICKEY.

RAILWAY GATE. No. 300,070.

erzZor Q M m W H o 0 P. o w 0 7 (No Model.) 3 Sheets-Sheet 2. J. HIOKEY.

RAILWAY GATE.

PatenJune 24 1 8 No. 300,070 I IIE N. PETERS. Phnlolnhognphtr.Walhingion. 04 a 3 Sheets-Sheet 3.

(No Model.)

J. HIGKEY RAILWAY GATE. No. 300,970. Patented June 24, 1884.

Nrrnn STATES JOHN HIOKEY, OF CHICAGO, ILLINOIS.

RAiLWAY-GATE.

SPECIFICATION forming part of Letters Patent No. 300,970, dated June 24,1884. I

Application filed February 1, 1884.

To all whom, it may concern.-

Be it known that 1, JOHN HIOKEY, of Ohicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inRailway-Gates, of which the following is a specification.

This invention is an improvement upon the gate known to railroad-men asthe Flagg gate, which is described in certain patents granted to J. S.WVinsor and H. A. Stearns; and the chief object-of the present inventionis to enable the two gate-bars at one side of the street to be raised orlowered together, but independently of the gate-bars at the oppositeside of the street, or to enable all the gate-bars to be raised orlowered at both sides of the street simultaneously.

Another object of the invention is to simplify and cheapen theconstruction of gates of this class.

In the accompanying drawings, Figure 1 is a perspective view of afour-post gate, the posts, for purposes of illustration, being numbered1, 2, 3, and 4. Fig. 2 shows a longitudinal section through posts Nos. 1and 3. Fig. 3is a similar section through posts 2 and 4. Fig. 4 is avertical transverse sectional elevation of posts Nos. 1 and 2. Fig. 5 isa plan of post No. 1, with the cover removed and parts broken away.

Similar letters of reference indicate similar parts in all the views.

As shown in Fig. 1, there are four postsone at each corner of thestructure-which posts consist of suitable framing inclosed by a metallicor other casing. \Vithin each post is a horizontal shaft, a, upon whichis mounted in posts 1 and 2 a gear-wheel or segmental gear, a, to whichare rigidly attached two grooved pulleys, a a. In post 1, which is thecrank-post, is mounted a longitudinal sliding shaft, 2), upon which iskeyed a broad-faced toothed pinion, c, which engages with the gear a,and also with the gear or toothed segment d, secured to a gas-pipe orother shaft, 6, extending across the track to post No. 2. The gears aand d are in different vertical planes, and the arrangement is such thateither can be engaged independently of the other by the toothed pinion0, or both simultaneously engaged by such pinion, according as thepinion (No model.)

The arrangement of gearing in post No. 2 is substantially the same as inpost No. 1, except that the gears a and d are in the same verticalplane, and instead of a broad-faced pinion upon a sliding shaft anordinary pinion, 0, having the same width of face as the gears a and dand mounted upon a shaft incapable of longitudinal movement, is used.The pinion engages at all times both gears a and d. The gear d connectswith the gas-pipe shaft 6. Posts Nos. 3 and 4 are each provided with amain horizontal shaft, a, upon which is mounted a double-grooved pulleyor sheave, a a. The grooved pulleys of each of the four posts areprovided with moving or adjustable connections, to which the chains areattached, so that they may be tightened as they become loose.

'The adj ustable device consists of a hook-bolt,

f, which passes through a lug, f, cast upon the pulley, said bolt beingprovided with a nut, f. It is seen that by tightening the nuts of thebolts f the chains 9 and g are tightened.

At the base of each post are two independent sheaves or pulleys, h h,and the arrangement of the chains with their sheaves and connections issuch that upon turning the crank in a direction to revolve the main gearof post No. 1 to the right (which will cause the fall of the gate-bar)the corresponding pulley of the post No. 3 will be rotated to the left,causing also the fall of its gate-bar. A partial revolution in theopposite direction will of course cause the lifting of the bars. Thesame result is accomplished with bars Nos. 2 and 4 at the opposite sideof the track, when it is desired to move the gate-bars of that side ofthe track simultaneously with the movement of the bars Nos. 1 and 3, andthe connections are made with that end in view.

In order to accomplish the movement of all four of the gate-barssimultaneously, the crankshaft 1) must be so slid or adjusted as tocause the pinion c to engage with both the gears a and (Z. (See the leftof Fig. 4.) WVhen it is intended to move the gate-bars of posts 1 and 2simultaneously but independently of bars 2 and 4, the crank-shaft ispushedinward out of contact with the gear (I. To move bars 2 and '4simultaneously but independently of bars 1 and 3, the pinion is drawnoutward, so

as to be free from engagement with the gear I gage both of said gears oreither, substantially a, butin engagement with the gear (I. The pinionand its shaft are moved longitudinally by means of ashifter, i, pivotedto the framework of the post. The shifter'i extends out from the post toa position where it can be conveniently reached and held by thegatetender with one hand while he operates the crank with the other. Alock is also used whereby the pinion may be held in engagement with thetwo gears so as to move all four gate-bars together, which appears to bethe action most commonly employed. The lock may consist of the deviceshown in Figs. 1 and 2 and seen enlarged in Fig. 5. A plate, z", issecured to the outside of the crank-post, having a notch, into which theshifter z is placed when it is to be locked. In Fig. 1 the shifter isshown free from the notch. The gate-bars are bifurcated, consisting oftwo parts braced and bolted together, each part of the bifurcated armbeing rigidly connected with one end of the main or pivoted shaft.

I disclaim an arrangement of gates worked from one of the standards orposts by a crankshaft having a long pinion arranged to engage with twotoothed wheels on the gate'pivot at the same time or with each alone byshifting the crank-shaft. Such an arrangement is not the equivalent ofmy invention, requiring that movement shall be transmitted from thecrank-shaft to certain of the gates by a cord and pulley within thecrank-post, whereas in my invention movement is transmitted within thecrank-post by geared wheels, which are positive in their action andadmit of no lost motion.

I claim as my invention-- 1. The combination, with the crank-post andgate-bars of a gate of the class named, of a gear-wheel mounted upon thegate-pivot at the crank-post, a gear-wheel mounted upon an independentshaft, said wheel standing in different vertical planes, and abroadfaced pinion mounted upon alongitudinally-moving crank-shaft, saidpinion being adapted to enas and for the purpose specified.

2. In a gate of the class named, the crankpost and gate-bars, agear-wheel mounted upon the gate-pivot at'the crank-post, a gearwheelmounted upon an independent shaft, said wheels standing in differentvertical planes, and a broad-faced pinion mounted upon a longitudinallymoving crank shaft, combined with an independent shifter forgivinglongitudinal movement to the crank-shaft, the pinion on said shaftbeing adapted to engage both gears or either, substantially as and forthe purposes specified.

3. In a gate of the class named, the crankpost and gate-bars, agear-wheel mounted upon the gate-pivot at the crank-post, a gearwheelmounted upon an independent shaft,

said wheels standing in different vertical planes, and a broad-facedpinion mounted upon a longitudinally-moving crank-shaftand adapted toengage both or either of said gearwheels. combined with pulley, chain,and rod connections, uniting and admitting of the joint operation of Ithe four bars, or either pair independently of the other pair,substantially as set forth.

4. In a gate of the class named, the crankpost and gate-bars, agear-wheel mounted upon the gate'pivot at the crank-post, a gearwh'eelmounted upon an independent shaft, said wheels standing in differentvertical planes, and a broad -faced pinion mounted uponalongitudinally-moving crank-shaft, combined with an independent shifterfor moving said crank-shaft and a lock for engaging the shifter,substantially as and for the purposes specified.

In testimony whereof I have hereunto set my hand this 25th day ofJanuary, A. D. 1884.

JOHN HIGKEY.

WVitnesses:

O. O. LINTHIOUM, O. R. BABEUF.

